Author: David Rasmussen
Date: 13:21:02 01/20/02
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On January 20, 2002 at 15:38:45, martin fierz wrote: >On January 20, 2002 at 09:01:50, David Rasmussen wrote: > >>There must be a value system of material that takes care of all special cases. >> >>1,3,3,5,9: >> >>Has the following problems: >>3 pawns for bishop or knight is almost always a bad idea. >in the middlegame, yes, in the endgame no. > >>2 knights/bishops for rook and pawn is almost always a bad idea. >in the middlegame yes, in the endgame, maybe not, if the rook has a passer. > >>2 rooks for queen is often not a good idea. >not at all, except if the queen can mate you. > >>3 knights/bishops for a queens is often not a good idea. Then again, often it is >>:) >it is a good idea more often than not. > >all these things are heavily dependent on the rest of the material on the board. >i don't think you have a chance... > >cheers > > martin I am not talking about things that depend on a lot of other stuff. Evaluation should take care of this. I am talking about Crafty that explicitly checks for some material special cases _and nothing else on the board_, and decides if it should give a penalty/bonus. I say that I think it can be done with the values alone. Why not? /David
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